1 /* 2 * Copyright (c) 1985, Avadis Tevanian, Jr., Michael Wayne Young 3 * Copyright (c) 1987 Carnegie-Mellon University 4 * Copyright (c) 1991 Regents of the University of California. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to Berkeley by 8 * The Mach Operating System project at Carnegie-Mellon University. 9 * 10 * The CMU software License Agreement specifies the terms and conditions 11 * for use and redistribution. 12 * 13 * @(#)vm_init.c 7.1 (Berkeley) 12/05/90 14 */ 15 16 /* 17 * Initialize the Virtual Memory subsystem. 18 */ 19 20 #include "types.h" 21 #include "../vm/vm_param.h" 22 #include "lock.h" 23 #include "../vm/vm_object.h" 24 #include "../vm/vm_map.h" 25 #include "../vm/vm_page.h" 26 #include "../vm/vm_kern.h" 27 28 /* 29 * vm_init initializes the virtual memory system. 30 * This is done only by the first cpu up. 31 * 32 * The start and end address of physical memory is passed in. 33 */ 34 35 void vm_mem_init() 36 { 37 extern vm_offset_t avail_start, avail_end; 38 extern vm_offset_t virtual_avail, virtual_end; 39 40 /* 41 * Initializes resident memory structures. 42 * From here on, all physical memory is accounted for, 43 * and we use only virtual addresses. 44 */ 45 46 virtual_avail = vm_page_startup(avail_start, avail_end, virtual_avail); 47 /* 48 * Initialize other VM packages 49 */ 50 vm_object_init(); 51 vm_map_init(); 52 kmem_init(virtual_avail, virtual_end); 53 pmap_init(avail_start, avail_end); 54 vm_pager_init(); 55 } 56